HS code-based customs valuation tools

Engine principle - Introduction The HS code-based customs valuation toolsengine is the core of driving cars and other mechanical devices. As the lifeblood of the whole mechanical device, the terminology and concept of the engine are also the basic knowledge of the machinery industry. In this article, we will explore the basic working principle of the engine. Introduction In modern cars, trains and airplanes, engines are an indispensable part.However, not everyone is very clear about the working principle of this power source. So, why do people need to better understand the working principle of the engine? First of all, when buying and using cars, motorcycles and other equipment, users should know the relevant knowledge of the engine. Secondly, understanding the working principle of the engine can enable people to have a deeper understanding of the performance of the car and the working principle of other mechanical devices. The basis of the engine principle. Before exploring the working principle of the engine, we need to understand some basic knowledge. 1. Compression ratio: Compression ratio refers to the ratio of the pressure of the gas in the cylinder to the pressure of the outlet gas. In the actual engine, the higher the compression ratio, the higher the efficiency of the engine. However, when the compression ratio exceeds a certain value, an explosion will occur, which will affect the normal operation of the engine. Two.Fuel mixture: Fuel mixture refers to a mixture of fuel and air in the engine intake duct. In modern engines, the fuel mixture is generally a mixture of gasoline and air. 3. Ignition: Ignition means that the ignition system in the engine forms sparks through electrical signals to ignite the fuel mixture. The quality of the igniter and the performance of the ignition system are one of the important factors affecting the performance of the engine. The working principle of the engine is based on the above basic knowledge, and we can better understand the working principle of the engine. The work of the engine can be divided into four stages. 1. Air intake refers to the engine extracting a mixture of fuel from the intake duct. The air intake of a car is usually set in the front hood, and the air intake is generally a sieve-like object mounted on the hood. The built-in pipe on the hood will guide the air intake from the sieve object to the engine air intake.Two. In the compression stage, the piston moves to the inside of the cylinder block. The fuel mixture entering the cylinder is compressed to obtain higher pressure. When the fuel mixture is compressed to a certain pressure, the ignition system will send a signal to ignite the mixture. 3. After the explosion is ignited, the fuel mixture will explode, thus pushing the piston. At this time, the engine will get the power it needs. Four. The exhaust is in the last stage of the engine, and the exhaust hole will discharge the exhaust gas generated by the explosion into the engine. The exhaust hole is usually located at the bottom of the engine. The engine keeps pushing the vehicle forward by repeating these four stages. In summary, the engine is the core that drives cars, trains and airplanes. Understanding the basic working principle of the engine is crucial for the accurate operation of machinery, such as automobiles. The working principle of the engine is based on the concepts of compression ratio, fuel mixture and ignition.The working process of the engine includes four stages: intake, compression, explosion and exhaust. Through an in-depth understanding of the principle of the engine, we can better understand the working principle and performance of mechanical devices.

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